That would be 2.5 pounds.
if i knew i would not have to ask
{| |- | 4 lbs. of white potatoes will make approximately 8 cups of cubed potatoes. On average, 1 lb. of white potatoes = 3 med. potatoes = 3 cups grated potatoes = 2 cups cubed potatoes = 1-3/4 cup mashed. |}
One pound of of white or russet potatoes makes approximately 1 3/4 cups of mashed potatoes. Using that measurement, then five pounds of potatoes would make approximately 8 3/4 cups of mashed potatoes. Source: http://southernfood.about.com/library/info/blequivp.htm
well! you need 6 cups to make 3 servings
If mashed after cooking, approximately 8 cups.
I would use 40 pounds.
Since 6 cups of water weighs 3 pounds, and potatoes are close to the same specific gravity as water, if you totally stuffed potatoes into the cups, they'd be about 3 pounds also. However if you're cubing them or shredding them etc. there's going to be some air there as well, so depending on what you're doing and how tightly packed I'd guess 2.5-3 pounds... Vaguely scientific answer ;)
That is approximately 2.2 cups of potatoes
Three pounds of Yukon potatoes typically yield about 6 to 8 cups of mashed potatoes, depending on how creamy or chunky you prefer them. Generally, you can expect to get about 2 to 2.5 cups of mashed potatoes from each pound of potatoes. Keep in mind that the final volume can vary based on cooking methods and the amount of added ingredients like butter and milk.
If you mashed it, it would be 2 cups.
One pound of potatoes yields about three cups of peeled & sliced potatoes.
A peck of potatoes weighs about 10 pounds, this is about 8 quarts or 16 pints US dry measure. so a cup which is a liquid measure is about 7/8 of a dry half pint, or about .27 pounds per cup of whole potatoes. The volume of potatoes can be reduced by chopping or grating them. So that 1 cup of potatoes weighs about 3/4 pound grated or about 1/2 pound chopped. So 1 lb of chopped potatoes is about 2 cups more or less, and 1 1/2 cups or so if grated. The type of potato will change these measurements a bit.